[INFO] updating cached repository pchampin/coercible_errors
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pchampin/coercible_errors
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pchampin/coercible_errors" "work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pchampin/coercible_errors" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pchampin/coercible_errors"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pchampin/coercible_errors'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6aed9cbf83889621f04213626b6babbe35a9a3f1
[INFO] sha for GitHub repo pchampin/coercible_errors: 6aed9cbf83889621f04213626b6babbe35a9a3f1
[INFO] validating manifest of pchampin/coercible_errors on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pchampin/coercible_errors on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pchampin/coercible_errors
[INFO] finished frobbing pchampin/coercible_errors
[INFO] frobbed toml for pchampin/coercible_errors written to work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors/Cargo.toml
[INFO] started frobbing pchampin/coercible_errors
[INFO] finished frobbing pchampin/coercible_errors
[INFO] frobbed toml for pchampin/coercible_errors written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pchampin/coercible_errors/Cargo.toml
[INFO] crate pchampin/coercible_errors already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pchampin/coercible_errors against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] af7d73c1c90431aed04b59cb49da79f2e57933f417bd2e5020fbcde16e065f43
[INFO] running `"docker" "start" "-a" "af7d73c1c90431aed04b59cb49da79f2e57933f417bd2e5020fbcde16e065f43"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling coercible_errors v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.00s
[INFO] running `"docker" "inspect" "af7d73c1c90431aed04b59cb49da79f2e57933f417bd2e5020fbcde16e065f43"`
[INFO] running `"docker" "rm" "-f" "af7d73c1c90431aed04b59cb49da79f2e57933f417bd2e5020fbcde16e065f43"`
[INFO] [stdout] af7d73c1c90431aed04b59cb49da79f2e57933f417bd2e5020fbcde16e065f43
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7799952843aed4a840b78cff45ba443d8dbe30cf216dbbda19d4459b562307cb
[INFO] running `"docker" "start" "-a" "7799952843aed4a840b78cff45ba443d8dbe30cf216dbbda19d4459b562307cb"`
[INFO] [stderr]    Compiling coercible_errors v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "7799952843aed4a840b78cff45ba443d8dbe30cf216dbbda19d4459b562307cb"`
[INFO] running `"docker" "rm" "-f" "7799952843aed4a840b78cff45ba443d8dbe30cf216dbbda19d4459b562307cb"`
[INFO] [stdout] 7799952843aed4a840b78cff45ba443d8dbe30cf216dbbda19d4459b562307cb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pchampin/coercible_errors:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2aac68f97cf5e8cf2d62291837b381ab3ac12cd44c5308af3f5a4ce92c8d566f
[INFO] running `"docker" "start" "-a" "2aac68f97cf5e8cf2d62291837b381ab3ac12cd44c5308af3f5a4ce92c8d566f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/coercible_errors-d0a21985f7094835
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test ... ok
[INFO] [stderr]    Doc-tests coercible_errors
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2aac68f97cf5e8cf2d62291837b381ab3ac12cd44c5308af3f5a4ce92c8d566f"`
[INFO] running `"docker" "rm" "-f" "2aac68f97cf5e8cf2d62291837b381ab3ac12cd44c5308af3f5a4ce92c8d566f"`
[INFO] [stdout] 2aac68f97cf5e8cf2d62291837b381ab3ac12cd44c5308af3f5a4ce92c8d566f